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ALT attribute: A property of a picture label that is used to describe a picture, when the link is broken, or if the mouse points to a picture.
Benefits of using the ALT attribute:
1, can help users better understand the meaning of the picture, improve the user access experience.
2, can improve the density of keywords in the Web page, improve keyword ranking.
3, convenient search engine spiders better understand the picture, in order to give a good picture search rankings.
The use principle of the ALT attribute:
1, the use of ALT attribute to help users better understand the purpose of the picture, appropriate to add descriptive text, must not stack keywords, so will have black hat cheating suspicion.
2, if the site has a large number of pictures, to the different pictures to use different ALT attributes, must not be the same, otherwise it will be thought to be piling keywords.
3, not all of the pictures must be added, if the picture itself is very clear, and added in the keyword density also does not help, that big can not join.
Use case for ALT attribute:
Short and brief, better: <img src= "http://www.xueseo.com.cn/peixun.gif" alt= "seo Training" >
Detailed analysis, recommended: <img src= "Http://www.xueseo.com.cn/peixun.gif" alt= "Shandong SEO team to provide SEO training services" >
Malicious piling, Danger: <img src= "http://www.xueseo.com.cn/peixun.gif" alt= "SEO training, website optimization, website promotion, seo, seo, seo optimization, * * * >
Through the above case, you should be able to understand how to add ALT attribute, as long as the user experience as the center, do not SEO and SEO, then there is no problem.
Author: Sun Yunqun
Start: Shandong SEO Training Team
URL: http://www.xueseo.com.cn